One of the problems (from a professional nursing standpoint: there are lots of problems from a public and consumer standpoint) of a national health insurance plan is that nurses will be paid less than we are now.
You can count on it. Government bureaucrats will be rewarded for cutting costs in public ways, such as for salaries and benefits for nurses. (Costs for other things will balloon up, but you can count on your pay not being one of those).
You will become a commodity. A commodity is an inter-changeable part. In other words, a nurse is a nurse is a nurse, and there will be nothing to stop bureaucrats from setting nurses' salaries low.
What you need to do is avoid being a commodity.
The way you avoid that is by developing a skill or specialty that's not covered by a national health insurance plan. There's nothing wrong with being a staff nurse in a hospital or care facility. But staff nurses will become targets for people who know nothing about how nursing operates or what we provide to clients.
I've suggested before that you think about completing a nurse practitioner program. This isn't ideal -- you would still be employed and under the control of a national health insurance bureaucracy. But there will be a substantial increase in primary caregivers such as NPs when a national health insurance program comes into effect.
In a national health insurance climate, some MDs go outside of that by specializing in areas such as plastic surgery or other such areas which aren't covered by the national health insurance, and as such, aren't subject to price controls by the government. I suggest you start now by looking for a similar area that you can go into. Some ideas are working with insurance companies, travel nursing, aesthetic and cosmetic surgery nursing and other such ideas.
What you want to avoid is being labeled "just a nurse." The just-a-nurses are sitting targets for bureaucrats. Unless you want a very unhappy career, I suggest you avoid being in their sights.